participants?

Please explain participants. The forum page says it's $30 per vehicle, but when I register it asks how many participants when I enter in my 3 (two adults, and a child) it shows $90 on the check out screen. Do I need to just enter in one there, and order extra T shirts, and meals for my guests?

Yes

30 is per participating rig

mac 'signed up two but prolly only bringing on 'gyvr